.page-faq {
  --faq-line-soft: rgba(201, 214, 216, .55);
  display: block;
  background: var(--mist);
}

/* ---------- 首屏 ---------- */
.page-faq .faq-hero {
  background:
    radial-gradient(120% 90% at 8% 0%, rgba(30, 122, 140, .10) 0%, rgba(30, 122, 140, 0) 58%),
    var(--mist);
  padding-top: clamp(20px, 4vw, 40px);
}

.page-faq .faq-hero__grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 28px;
}

.page-faq .faq-hero__main {
  min-width: 0;
}

.page-faq .faq-hero h1 {
  margin: 12px 0 20px;
  font-family: var(--font-sans);
  font-weight: 800;
  letter-spacing: -.01em;
  line-height: 1.18;
  font-size: clamp(1.9rem, 5.4vw, 3.05rem);
  color: var(--ink);
}

.page-faq .faq-hero__lead {
  max-width: 60ch;
  font-family: var(--font-serif);
  font-size: 1.02rem;
  line-height: 1.85;
  color: var(--slate);
  margin: 0 0 14px;
}

.page-faq .faq-hero__side {
  background: var(--ink);
  border-radius: var(--r-xl);
  padding: 26px 24px 22px;
  color: var(--white);
  position: relative;
  overflow: hidden;
}

.page-faq .faq-hero__side::after {
  content: "";
  position: absolute;
  right: -40px;
  top: -40px;
  width: 180px;
  height: 180px;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(232, 163, 61, .22) 0%, rgba(232, 163, 61, 0) 68%);
  pointer-events: none;
}

.page-faq .faq-hero__side .version-badge {
  position: relative;
  z-index: 1;
}

.page-faq .faq-hero__sidenote {
  position: relative;
  z-index: 1;
  margin: 18px 0 16px;
  font-family: var(--font-mono);
  font-size: .82rem;
  line-height: 1.8;
  letter-spacing: .02em;
  color: rgba(255, 255, 255, .72);
}

.page-faq .faq-hub {
  list-style: none;
  margin: 0;
  padding: 0;
  position: relative;
  z-index: 1;
  border-top: 1px solid rgba(201, 214, 216, .22);
}

.page-faq .faq-hub__item {
  border-bottom: 1px solid rgba(201, 214, 216, .22);
}

.page-faq .faq-hub__link {
  display: block;
  padding: 12px 0;
  color: var(--white);
  text-decoration: none;
  font-size: .95rem;
  font-weight: 600;
  letter-spacing: .02em;
  transition: color .2s ease, padding-left .2s ease;
}

.page-faq .faq-hub__link::before {
  content: "→";
  color: var(--sky);
  margin-right: 10px;
  font-family: var(--font-mono);
  font-size: .85rem;
}

.page-faq .faq-hub__link:hover,
.page-faq .faq-hub__link:focus-visible {
  color: var(--amber);
  padding-left: 4px;
}

/* ---------- 索引区 ---------- */
.page-faq .faq-index-section {
  background: var(--white);
}

.page-faq .faq-index__figure {
  margin: 0 0 clamp(28px, 4vw, 48px);
}

.page-faq .faq-index {
  position: relative;
  border-top: 1px solid var(--faq-line-soft);
  padding-top: clamp(22px, 3vw, 34px);
}

.page-faq .faq-index__radio {
  position: absolute;
  width: 1px;
  height: 1px;
  opacity: 0;
  pointer-events: none;
  clip: rect(0, 0, 0, 0);
}

.page-faq .faq-index__bar {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 14px 20px;
  margin-bottom: clamp(22px, 3vw, 34px);
}

.page-faq .faq-index__barlabel {
  font-family: var(--font-mono);
  font-size: .76rem;
  letter-spacing: .14em;
  text-transform: uppercase;
  color: var(--slate);
}

.page-faq .faq-index__switcher {
  display: inline-flex;
  padding: 4px;
  background: var(--mist);
  border: 1px solid var(--line);
  border-radius: var(--r-pill);
}

.page-faq .faq-index__tab {
  padding: 9px 22px;
  border-radius: var(--r-pill);
  font-size: .9rem;
  font-weight: 600;
  color: var(--slate);
  cursor: pointer;
  user-select: none;
  transition: background .22s ease, color .22s ease;
}

.page-faq .faq-index__tab:hover {
  color: var(--ink);
}

.page-faq #faq-view-ver:checked ~ .faq-index__bar .faq-index__tab[for="faq-view-ver"],
.page-faq #faq-view-top:checked ~ .faq-index__bar .faq-index__tab[for="faq-view-top"] {
  background: var(--deep);
  color: var(--white);
}

.page-faq .faq-index__panel {
  display: none;
}

.page-faq .faq-index__panel--ver {
  display: block;
}

.page-faq #faq-view-ver:checked ~ .faq-index__panels .faq-index__panel--ver {
  display: block;
}

.page-faq #faq-view-ver:checked ~ .faq-index__panels .faq-index__panel--top {
  display: none;
}

.page-faq #faq-view-top:checked ~ .faq-index__panels .faq-index__panel--ver {
  display: none;
}

.page-faq #faq-view-top:checked ~ .faq-index__panels .faq-index__panel--top {
  display: block;
}

/* 版本视图：纵向编号列表 */
.page-faq .faq-verlist {
  list-style: none;
  margin: 0;
  padding: 0;
}

.page-faq .faq-verrow {
  display: grid;
  grid-template-columns: 1fr;
  gap: 8px;
  padding: 22px 0;
  border-bottom: 1px solid var(--faq-line-soft);
}

.page-faq .faq-verrow:first-child {
  border-top: 1px dashed var(--line);
}

.page-faq .faq-verrow__no {
  font-family: var(--font-mono);
  font-size: .82rem;
  letter-spacing: .08em;
  color: var(--sky);
}

.page-faq .faq-verrow__title {
  margin: 0 0 8px;
  font-family: var(--font-sans);
  font-size: 1.08rem;
  font-weight: 800;
  letter-spacing: -.005em;
  color: var(--ink);
}

.page-faq .faq-verrow:first-child .faq-verrow__title::after {
  content: "当前";
  display: inline-block;
  margin-left: 10px;
  padding: 2px 10px;
  border-radius: var(--r-pill);
  background: rgba(232, 163, 61, .16);
  color: var(--amber-deep);
  font-size: .72rem;
  font-weight: 600;
  letter-spacing: .06em;
  vertical-align: 2px;
}

.page-faq .faq-verrow__text {
  margin: 0 0 10px;
  max-width: 66ch;
  font-family: var(--font-serif);
  font-size: .97rem;
  line-height: 1.8;
  color: var(--slate);
}

.page-faq .faq-verrow__link {
  margin: 0;
}

.page-faq .faq-verrow__link a {
  font-family: var(--font-mono);
  font-size: .82rem;
  letter-spacing: .03em;
  color: var(--sky);
  text-decoration: none;
  border-bottom: 1px solid rgba(30, 122, 140, .35);
  padding-bottom: 1px;
}

.page-faq .faq-verrow__link a:hover,
.page-faq .faq-verrow__link a:focus-visible {
  color: var(--amber-deep);
  border-bottom-color: var(--amber);
}

/* 主题视图：分栏网格 */
.page-faq .faq-topicgrid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 14px;
}

.page-faq .faq-topic {
  border: 1px solid var(--line);
  border-radius: 12px;
  padding: 20px 20px 18px;
  background: var(--mist);
  display: flex;
  flex-direction: column;
  transition: border-color .22s ease, background .22s ease, transform .22s ease;
}

.page-faq .faq-topic:hover {
  border-color: var(--sky);
  background: var(--white);
  transform: translateY(-2px);
}

.page-faq .faq-topic--note {
  border-style: dashed;
  background: transparent;
}

.page-faq .faq-topic__no {
  margin: 0 0 10px;
  font-family: var(--font-mono);
  font-size: .74rem;
  letter-spacing: .14em;
  color: var(--sky);
}

.page-faq .faq-topic__title {
  margin: 0 0 8px;
  font-family: var(--font-sans);
  font-size: 1.05rem;
  font-weight: 800;
  letter-spacing: -.005em;
  color: var(--ink);
}

.page-faq .faq-topic__text {
  margin: 0 0 14px;
  font-family: var(--font-serif);
  font-size: .93rem;
  line-height: 1.78;
  color: var(--slate);
  flex: 1;
}

.page-faq .faq-topic__link {
  margin: 0;
}

.page-faq .faq-topic__link a {
  font-family: var(--font-mono);
  font-size: .8rem;
  letter-spacing: .03em;
  color: var(--sky);
  text-decoration: none;
}

.page-faq .faq-topic__link a::after {
  content: " →";
}

.page-faq .faq-topic__link a:hover,
.page-faq .faq-topic__link a:focus-visible {
  color: var(--amber-deep);
}

/* ---------- 高频问题 ---------- */
.page-faq .faq-qa-section {
  background: var(--ink);
  background-image: radial-gradient(90% 120% at 100% 0%, rgba(18, 65, 74, .85) 0%, rgba(14, 27, 31, 0) 62%);
}

.page-faq .faq-qa {
  border-top: 1px solid rgba(201, 214, 216, .2);
}

.page-faq .faq-qa__item {
  border-bottom: 1px solid rgba(201, 214, 216, .2);
}

.page-faq .faq-qa__item .disclosure__head {
  position: relative;
  display: flex;
  align-items: center;
  gap: 16px;
  width: 100%;
  padding: 20px 0;
  background: transparent;
  color: var(--white);
  text-align: left;
  transition: padding-left .22s ease, color .22s ease;
}

.page-faq .faq-qa__item .disclosure__title {
  flex: 1;
  min-width: 0;
  font-family: var(--font-sans);
  font-size: 1.02rem;
  font-weight: 600;
  letter-spacing: .01em;
  line-height: 1.55;
}

.page-faq .faq-qa__item .disclosure__head:hover .disclosure__title,
.page-faq .faq-qa__item .disclosure__head:focus-visible .disclosure__title {
  color: var(--amber);
}

.page-faq .faq-qa__item .disclosure__head[aria-expanded="true"] {
  padding-left: 18px;
}

.page-faq .faq-qa__item .disclosure__head[aria-expanded="true"]::before {
  content: "";
  position: absolute;
  left: 0;
  top: 18px;
  bottom: 18px;
  width: 3px;
  border-radius: 3px;
  background: var(--amber);
}

.page-faq .faq-qa__tag {
  flex: none;
  opacity: 0;
  transition: opacity .2s ease;
}

.page-faq .faq-qa__item:hover .faq-qa__tag,
.page-faq .faq-qa__item:focus-within .faq-qa__tag {
  opacity: 1;
}

.page-faq .faq-qa__item .disclosure__inner {
  padding: 0 0 22px 18px;
  max-width: 72ch;
}

.page-faq .faq-qa__item .disclosure__inner p {
  margin: 0 0 8px;
  font-family: var(--font-serif);
  font-size: .96rem;
  line-height: 1.85;
  color: rgba(255, 255, 255, .78);
}

.page-faq .faq-qa__item .disclosure__inner p:last-child {
  margin-bottom: 0;
}

/* ---------- 端侧与登录 ---------- */
.page-faq .faq-device-section {
  background: var(--mist);
}

.page-faq .faq-split2 {
  display: grid;
  grid-template-columns: 1fr;
  gap: 18px;
}

.page-faq .faq-panel {
  background: var(--white);
  border: 1px solid var(--line);
  border-radius: var(--r-lg);
  padding: 24px 22px 20px;
  position: relative;
}

.page-faq .faq-panel::before {
  content: "";
  position: absolute;
  left: 22px;
  right: 22px;
  top: 0;
  height: 3px;
  border-radius: 0 0 3px 3px;
  background: linear-gradient(90deg, var(--sky) 0%, var(--terra) 62%, rgba(21, 156, 140, 0) 100%);
}

.page-faq .faq-panel__no {
  margin: 0 0 8px;
  font-family: var(--font-mono);
  font-size: .76rem;
  letter-spacing: .2em;
  color: var(--terra);
}

.page-faq .faq-panel__title {
  margin: 0 0 16px;
  font-family: var(--font-sans);
  font-size: 1.14rem;
  font-weight: 800;
  letter-spacing: -.005em;
  color: var(--ink);
}

.page-faq .faq-panel__list {
  list-style: none;
  margin: 0 0 18px;
  padding: 0;
}

.page-faq .faq-panel__list li {
  position: relative;
  padding: 10px 0 10px 18px;
  border-bottom: 1px solid var(--faq-line-soft);
  font-family: var(--font-serif);
  font-size: .94rem;
  line-height: 1.78;
  color: var(--slate);
}

.page-faq .faq-panel__list li:last-child {
  border-bottom: 0;
}

.page-faq .faq-panel__list li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 19px;
  width: 7px;
  height: 7px;
  border-radius: 50%;
  background: var(--sky);
}

.page-faq .faq-panel__list strong {
  color: var(--ink);
  font-weight: 600;
  font-family: var(--font-sans);
  font-size: .92rem;
}

.page-faq .faq-panel__foot {
  margin: 0;
}

.page-faq .faq-panel__foot a {
  font-family: var(--font-mono);
  font-size: .82rem;
  letter-spacing: .03em;
  color: var(--sky);
  text-decoration: none;
  border-bottom: 1px solid rgba(30, 122, 140, .35);
  padding-bottom: 1px;
}

.page-faq .faq-panel__foot a:hover,
.page-faq .faq-panel__foot a:focus-visible {
  color: var(--amber-deep);
  border-bottom-color: var(--amber);
}

.page-faq .faq-notice {
  margin-top: clamp(24px, 3vw, 36px);
}

/* ---------- 规则查询路径 ---------- */
.page-faq .faq-lookup-section {
  background: var(--white);
}

.page-faq .faq-lookup__figure {
  margin: 0 0 26px;
}

.page-faq .faq-steps {
  list-style: none;
  margin: 0;
  padding: 0;
  counter-reset: faqstep;
}

.page-faq .faq-step {
  display: grid;
  grid-template-columns: 46px 1fr;
  gap: 14px;
  padding: 20px 0;
  border-bottom: 1px solid var(--faq-line-soft);
}

.page-faq .faq-step:first-child {
  border-top: 1px solid var(--faq-line-soft);
}

.page-faq .faq-step__no {
  font-family: var(--font-mono);
  font-size: .9rem;
  letter-spacing: .06em;
  color: var(--sky);
  padding-top: 3px;
}

.page-faq .faq-step__title {
  margin: 0 0 6px;
  font-family: var(--font-sans);
  font-size: 1rem;
  font-weight: 800;
  letter-spacing: -.005em;
  color: var(--ink);
}

.page-faq .faq-step__body p {
  margin: 0;
  max-width: 62ch;
  font-family: var(--font-serif);
  font-size: .94rem;
  line-height: 1.8;
  color: var(--slate);
}

/* ---------- 未覆盖问题 ---------- */
.page-faq .faq-assist-section {
  background: var(--deep);
  background-image: radial-gradient(100% 130% at 0% 100%, rgba(30, 122, 140, .55) 0%, rgba(18, 65, 74, 0) 60%);
}

.page-faq .faq-assist {
  display: grid;
  grid-template-columns: 1fr;
  gap: 16px;
}

.page-faq .faq-assist__card {
  border: 1px solid rgba(201, 214, 216, .28);
  border-radius: var(--r-md);
  padding: 22px 20px 18px;
  background: rgba(255, 255, 255, .04);
}

.page-faq .faq-assist__label {
  margin: 0 0 10px;
  font-family: var(--font-mono);
  font-size: .76rem;
  letter-spacing: .16em;
  text-transform: uppercase;
  color: var(--amber);
}

.page-faq .faq-assist__value {
  margin: 0 0 12px;
  font-family: var(--font-sans);
  font-size: clamp(1rem, 2.4vw, 1.12rem);
  font-weight: 800;
  letter-spacing: .01em;
  color: var(--white);
  word-break: break-word;
}

.page-faq .faq-assist__value a {
  color: var(--white);
  text-decoration: none;
  border-bottom: 1px solid rgba(232, 163, 61, .5);
  padding-bottom: 2px;
}

.page-faq .faq-assist__value a:hover,
.page-faq .faq-assist__value a:focus-visible {
  color: var(--amber);
}

.page-faq .faq-assist__hint {
  margin: 0;
  font-family: var(--font-serif);
  font-size: .92rem;
  line-height: 1.8;
  color: rgba(255, 255, 255, .74);
}

.page-faq .faq-assist__foot {
  margin-top: clamp(26px, 3vw, 40px);
  padding-top: 22px;
  border-top: 1px solid rgba(201, 214, 216, .24);
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 16px 24px;
}

.page-faq .faq-assist__foot > p:first-child {
  flex: 1 1 320px;
  margin: 0;
  font-family: var(--font-serif);
  font-size: .95rem;
  line-height: 1.8;
  color: rgba(255, 255, 255, .76);
}

.page-faq .faq-assist__actions {
  margin: 0;
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
}

/* ---------- 响应式 ---------- */
@media (min-width: 640px) {
  .page-faq .faq-topicgrid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 16px;
  }

  .page-faq .faq-split2 {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 20px;
  }

  .page-faq .faq-assist {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}

@media (min-width: 900px) {
  .page-faq .faq-hero__grid {
    grid-template-columns: minmax(0, 1.25fr) minmax(320px, .85fr);
    align-items: center;
    gap: clamp(32px, 5vw, 72px);
  }

  .page-faq .faq-verrow {
    grid-template-columns: 76px minmax(0, 1fr);
    gap: 20px;
    align-items: start;
  }

  .page-faq .faq-lookup__split {
    display: grid;
    grid-template-columns: minmax(0, 38fr) minmax(0, 62fr);
    gap: clamp(28px, 4vw, 56px);
    align-items: start;
  }

  .page-faq .faq-lookup__figure {
    margin: 0;
  }

  .page-faq .faq-topicgrid {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }

  .page-faq .faq-assist {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }

  .page-faq .faq-qa__tag {
    opacity: .45;
  }
}

@media (max-width: 899px) {
  .page-faq .faq-qa__tag {
    opacity: 1;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-faq .faq-topic,
  .page-faq .faq-hub__link,
  .page-faq .faq-qa__item .disclosure__head {
    transition: none;
  }

  .page-faq .faq-topic:hover {
    transform: none;
  }
}